地下水污染风险评价的迭置指数法研究综述

A Review on the Overlay and Index Method for Groundwater Pollution Risk Assessment

目前,我国大部分城市采用地下水作为饮用水源,而地下水污染状况日益严重,地下水污染风险评价作为管理者制定污染防治方案的一种手段,显得尤为重要。地下水污染风险评价虽然已经有一定范围的应用,但对其概念并没有统一的定义,因此,在总结国内外地下水污染风险评价研究进展的基础上,提出地下水污染风险的定义,并重点讨论迭置指数法在地下水污染风险评价中的应用,并在此基础上提出存在的问题及建议。

Groundwater is a very important natural resource in many regions for water supply and development.However,groundwater pollution condition is becoming seriously due to the improper groundwater exploitation or surface contamination.In order to prevent the groundwater quality deterioration,groundwater pollution risk assessment as an important step in pollution-control management,is used to determine the value of risk for quantitative or qualitative.Although groundwater pollution risk assessment has applied in many regions,but there is not a uniform definition.Therefore,a definition for groundwater pollution risk assessment should be proposed based on the review of the process of assessment.The overlay and index method play an important role in assessment,the assessment framework and the way to obtain the parameter in overlay and index method is also proposed.And the problems requesting further research are finally put forward.